Improved carriage-jack



I antifa (saft/E5 pawn- 'entre Letters Patent N0. 92,899, dated July 20, 1869.

vnvnmovnn ommen-JACK.

The Scheduley referred to in these Letters Patent Aand making part of the same.

To all whom it may concern: n

Be it known that I, J 00B STEUER, of Albany, in the county ofAlbany, and State ofNew York,.have in rented certain new and useful Improvements in Lifting-Jacks; and I do hereby declare that the following is a full,

clear, and exact description thereof, reference beingV had to the accompanying drawings, and to the letters o reference marked thereon, ,which form a part of this specification, and in which- Figure l represents a sidel view, with a part of the case removed, and

FigurevZ, a side View of the lifting-bar.

Similar letters indicate like parts in both figures.

My invention consists in the general arrangement ofthe several parts hereinafter set forth.

'lo enable others skilled in the art to which my in: vention appertains, to make and use the same, I will now describe its construction and operation.

In the accompanying drawingsy A represents the stock, which is formed with a recess or opening, b, as seen in iig. 1.

Through this opening is passed the shaft l), on which is secured the pinion c, working into -the gear-wheel d, which works into the pinion e.I

-B is the rack formed with teeth a a, said teeth work-f ing into the pinion e, as seen in iig. 1.

The rack B is formed at its upper `end with the bar il', provided with pins d e', and at its lower end with thelittingarm f, as s een in fig. 2, in order that the jack may be used for raising at any desired distance.

g g represent frictionrollers pivoted in the stock A to take olf the friction from the rack and the sides o the stock.

h h represent pins/for holding the jack in position.

D represents a ratchet-wheel, said wheel having a suitable handle attached to it for operating the mechanism of my jack.

l; is a pawl pivoted at the top of stock A, and serves to prevent .the ratchet-wheel D. from revolving backwards while the machine is in use.

Having thns'described my invention,

What I claim as new, anddesire to secure by Let- The rack B, rollers g g, pinions v e, gear-wheel ll, ratchet-wheel l), pawl Ir, and stock A, all constructed, combined, and arranged as and for the purpose described.- Y

In testimony that I claim the foregoing as my own, I aiix my signature, in presence of two witnesses.

' JACOB STEUER.

lVit-nesses:

FRANK Gu'rMAN, Louis A. SAURBIER. 

